JP2016035608A - Passbook processor, automatic transaction device, foreign matter detection method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a technique capable of outputting whether or not there is held foreign matter.SOLUTION: A passbook processor comprises: a reading part that reads the waveform of a magnetic signal from a magnetic stripe that a passbook has; a first determination part that decides in the waveform a first interval between peaks beyond a first threshold, and then determines whether or not there is a first abnormal part which is a peak interval larger than a prescribed peak interval in the first interval; a second determination part that decides in the waveform a second interval between peaks beyond a second threshold different from the first threshold, and determines whether or not there is a second abnormal part which is a peak interval larger than a prescribed peak interval in the second interval; and an output part that outputs a notification that there is held foreign matter when the difference between the first abnormal part and the second abnormal part is less than a prescribed value.SELECTED DRAWING: Figure 18

Description

  The present invention relates to a bankbook processing apparatus.

  As an automatic transaction apparatus that handles money (such as coins and banknotes), an automatic teller machine (ATM), an automatic teller machine (Cash Dispenser, CD), and the like are known. Some of these automatic transaction apparatuses are equipped with a passbook processing device capable of handling a passbook. Magnetic information is used as a method of recording personal information, balance information, and the like of a passbook handled by a passbook processing apparatus.

  Conventionally, as a method of reading magnetic information recorded on a magnetic stripe from a passbook having a magnetic stripe, a method of reading out magnetism with a magnetic head and outputting a waveform is known (Patent Document 1).

JP 2007-188572 A

  However, when a user of the automatic transaction apparatus sandwiches a foreign object such as a statement slip on the magnetic stripe of the medium and the waveform is output from the magnetic stripe, the output waveform becomes smaller at the portion where the foreign object is caught. There was a problem. In addition, when magnetic information is written in a portion where a foreign object is bitten, there is a problem that the magnetic information may not be written correctly. For this reason, when a user of an automatic transaction apparatus has inserted a foreign object such as a statement slip on the magnetic stripe of the medium, a technique that can detect the inclusion of the foreign object has been desired.

  Other causes of the decrease in the output waveform include magnetic attenuation due to the magnet coming into contact with the magnetic stripe of the medium, and separation of the magnetic head and magnetic stripe when reading magnetic information due to bending of the medium. For this reason, a technique capable of detecting magnetic attenuation by a magnet and detecting breakage has been desired.

  In addition, the passbook processing apparatus has been desired to be reduced in cost, miniaturized, easy to manufacture, save resources, improve usability, and improve durability.

  In order to solve the above-described problems, a passbook processing apparatus of the present invention includes a reading unit that reads a waveform of a magnetic signal from a magnetic stripe included in a passbook, and a first interval of peaks that exceed a first threshold among the waveforms. After the determination, a first determination unit that determines whether or not there is a first abnormal portion having a peak interval larger than a predetermined peak interval in the first interval; After determining a second interval of peaks that exceed a second threshold value different from the threshold value, is there a second abnormal portion in the second interval that has a peak interval greater than the predetermined peak interval? A second determination unit that determines whether there is a first abnormal portion and a second abnormal portion, and a difference between the first abnormal portion and the second abnormal portion is predetermined. If the value is smaller than the value, it indicates that there is a foreign object And an output unit for the.

  According to the present invention, it is possible to output the presence / absence of foreign matter being caught.

  Problems, configurations, and effects other than those described above will be clarified by the following description of embodiments.

The schematic diagram of the automatic transaction apparatus 100 in this embodiment. Explanatory drawing which shows the structure of the automatic transaction apparatus 100. FIG. The schematic diagram which shows the bankbook 1. FIG. Explanatory drawing which shows a mode that the bankbook 1 is put into the automatic transaction apparatus 100. FIG. FIG. 3 is an explanatory diagram showing how the magnetic head unit 44 reads and writes magnetism in the magnetic stripe 8. An explanatory view showing a state in which a foreign object 5 is sandwiched on a magnetic stripe 8 of a bankbook 1. Explanatory drawing which shows the state in which a part of magnetic stripe 8 of the passbook 1 has a crease | fold. The schematic diagram which shows the screen displayed on the display part 52 of the automatic transaction apparatus 100 in the state in which the foreign material 5 was pinched | interposed into the magnetic stripe 8, and the state in which the magnetic stripe 8 had a part broken. FIG. 6 is a schematic diagram showing a bankbook entry machine 61. The figure which shows the waveform of the magnetic signal read by the magnetic head part 44 from the magnetic stripe 8. FIG. The figure which shows the waveform of the magnetic signal read by the magnetic head part 44 from the normal magnetic stripe 8. FIG. The figure which shows the waveform of the magnetic signal read from the magnetic stripe 8 in the state which pinched the foreign material 5 in a part of central vicinity of the magnetic stripe 8. FIG. The figure which shows the waveform of the magnetic signal read from the magnetic stripe 8 in the state (refer FIG.6 (b)) in which the foreign material 5 was inserted | pinched in about half of the magnetic stripe 8 whole. The figure which shows the waveform of the magnetic signal read from the magnetic stripe 8 in the state (refer FIG.6 (c)) which inserted the foreign material 5 in the whole surface of the magnetic stripe 8. FIG. The figure which shows the waveform of the magnetic signal read from the magnetic stripe 8 in which the magnetic attenuation generate | occur | produced in part. The figure which shows the waveform of the magnetic signal read from the magnetic stripe 8 in which the magnetic attenuation generate | occur | produced in part. The figure which shows the waveform of the magnetic signal read from the magnetic stripe 8 in the state (refer FIG. 9) in which a part of magnetic stripe 8 has a crease | fold. 10 is a flowchart showing a read operation of the magnetic stripe 8. The flowchart which shows an attenuation | damping determination process. 9 is a flowchart showing a writing process to a magnetic stripe 8 in the second embodiment.

  Hereinafter, embodiments of the present invention will be described in detail.

A. First embodiment A-1. Configuration of Automatic Transaction Apparatus 100 FIG. 1 is a schematic diagram of an automatic transaction apparatus 100 in the present embodiment. The automatic transaction apparatus 100 is an automatic cash transaction apparatus including a passbook processing apparatus 40.

  The automatic transaction apparatus 100 includes an entrance / exit 51 through which a passbook is inserted and ejected, a display unit 52 used for operation by a user and display to the user, an entrance / exit 53 through which a card is inserted and ejected, bills and And an entrance / exit 54 through which coins are taken in and out.

  FIG. 2 is an explanatory diagram showing the configuration of the automatic transaction apparatus 100. The automatic transaction apparatus 100 includes an overall control unit 10 that controls each part of the automatic transaction apparatus 100, a passbook processing device 40 that handles a passbook, a display unit 52, a card processing unit 70 that handles a cash card, and the input and output of banknotes and coins. The money processing part 80 which performs money processing, and the communication part 90 which transmits / receives transaction data with a host apparatus are provided.

  The bankbook processing device 40 includes a magnetic head unit 44 that functions as a reading unit that reads a waveform of a magnetic signal from a magnetic stripe included in the bankbook and a writing unit that writes to the magnetic stripe, a transporting unit 45 that transports the bankbook, and a bankbook processing device. And a control unit 46 for controlling the whole 40.

  FIG. 3 is a schematic diagram showing the bankbook 1. FIG. 3 shows the bankbook 1 with the front cover and the back cover open. In this embodiment, when the user puts the bankbook 1 into the entrance / exit 51, the bankbook 1 is inserted with the front cover and the back cover open.

  In FIG. 3, the lower side of the drawing shows the back cover side, and in the present embodiment, a magnetic stripe 8 is provided on the back cover side. In the magnetic stripe 8, digital data such as an account number and a user identification number is recorded as magnetism.

  FIG. 4 is an explanatory view showing a state in which the bankbook 1 is put into the automatic transaction apparatus 100. 1 inserted from the entrance / exit 51 is conveyed to the magnetic head unit 44 by the conveyance unit 45. In the present embodiment, the transport unit 45 includes a transport roller 3, a transport path 4, and a drive motor (not shown) that drives the transport roller 3.

  FIG. 5 is an explanatory diagram showing how the magnetic head unit 44 reads and writes magnetism in the magnetic stripe 8. As shown in FIG. 5, the magnetic stripe 8 scans the magnetic head portion 44 to read or write magnetism in the magnetic stripe 8.

  FIG. 6 is an explanatory diagram showing a state in which the foreign object 5 is sandwiched between the magnetic stripes 8 of the bankbook 1. In the present embodiment, a statement slip is assumed as the foreign matter, but as the other foreign matter, for example, a clip or a cellophane tape can be considered. FIG. 6A shows a state in which the foreign material 5 is sandwiched in a part near the center of the magnetic stripe 8. FIG. 6B shows a state in which the foreign material 5 is sandwiched in about half of the entire magnetic stripe 8. FIG. 6C shows a state in which the foreign matter 5 is sandwiched on the entire surface of the magnetic stripe 8.

  FIG. 7 is an explanatory view showing a state in which a part of the magnetic stripe 8 is broken. When (i) the foreign matter 5 is sandwiched in the magnetic stripe 8 or (ii) the magnetic stripe is partially read, the magnetic head 44 reads the magnetism in a normal state. There is a possibility that magnetism may not be read correctly as compared with the case where magnetism is read by the unit 44.

  FIG. 8 shows a screen displayed on the display unit 52 of the automatic transaction apparatus 100 in a state where (i) the foreign object 5 is sandwiched in the magnetic stripe 8 and (ii) a part of the magnetic stripe 8 is folded. It is a schematic diagram. FIG. 8A shows a screen that is output when a state in which the foreign object 5 is sandwiched between the magnetic stripes 8 is detected. Specifically, “There is a possibility that a foreign object has been caught in the customer's bankbook. Please confirm and remove the foreign object, then reinsert or come to the window” is displayed on the display unit 52. FIG. 8B shows a screen output when a state where a part of the magnetic stripe 8 is broken is detected. Specifically, “There is an abnormality in the customer's bankbook status. Please check and come to the counter” is displayed on the display unit 52.

  In addition, in this embodiment, although demonstrated using the automatic transaction apparatus 100, this invention is not limited to this, For example, you may use a passbook bookkeeping machine. FIG. 9 is a schematic diagram showing a passbook bookkeeping machine 61. The passbook entry device 61 is a device used for entry into a passbook, and is used at a financial institution or the like. The bankbook recorder 61 includes a bankbook insertion unit 62 for inserting a bankbook. The user operates the passbook recorder 61 through the PC 63 connected to the passbook recorder 61.

A-2. Measurement of Peak Interval FIG. 10 is a diagram showing a waveform of a magnetic signal read from the magnetic stripe 8 by the magnetic head unit 44. The waveform of the magnetic signal has a plurality of peaks that rise in the positive and negative directions. In the present embodiment, it is determined that there is a peak when the absolute value of the magnetic output level exceeds a threshold value. Magnetic information is generated based on the interval between peaks. In the present embodiment, an FM (Frequency modulation) method is employed. For this reason, there are originally two different intervals indicating the peak interval of 0 and 1. However, in order to facilitate understanding of the contents, the peak interval will be described as one in the following.

  FIG. 10A is a diagram illustrating a waveform of a magnetic signal read from the magnetic stripe 8 by the magnetic head unit 44. The vertical axis represents voltage output, and the horizontal axis represents time. That is, FIG. 10A is a diagram showing the voltage value detected by the magnetic head unit 44 on the time axis. FIG. 10B is an enlarged view of the waveform in FIG. 10A on the horizontal axis (time axis). In FIG. 10B, the threshold value for determining a peak is L1, and the peak interval is a.

  FIG. 10C is a diagram in which the horizontal axis is a time axis and the vertical axis is a peak interval. As shown in FIG. 10C, the peak interval of the magnetic signal read from the normal magnetic stripe 8 by the magnetic head unit 44 is substantially constant.

  FIG. 11A shows the waveform of a magnetic signal read from the normal magnetic stripe 8 by the magnetic head unit 44. In FIG. 11A, threshold values L1, L2, and L3 that are determined to be peaks are described (L1> L2> L3). FIG. 11B is a diagram showing the peak interval when the threshold is L1, FIG. 11C is a diagram showing the peak interval when the threshold is L2, and FIG. It is a figure which shows the peak space | interval at the time of setting to L3. FIGS. 11B to 11D show that the peak interval of the magnetic signal read from the normal magnetic stripe 8 does not change greatly even if the threshold value is changed.

  FIG. 12A shows the waveform of the magnetic signal read from the magnetic stripe 8 in a state where the foreign object 5 is sandwiched in a part near the center of the magnetic stripe 8 (see FIG. 6A). In FIG. 12A, it can be seen that the voltage value of the portion sandwiching the foreign material 5 is smaller than the voltage value of the other portion. FIG. 12B is a diagram showing the peak interval when the threshold is L1, FIG. 12C is a diagram showing the peak interval when the threshold is L2, and FIG. It is a figure which shows the peak space | interval at the time of setting to L3. From FIG. 12B, the following can be seen from FIG. Each value of the peak interval in the portion where the foreign object 5 is not sandwiched is substantially constant. On the other hand, it can be seen that the peak exceeding the threshold is not detected in the portion where the foreign material 5 is sandwiched, and as a result, the peak interval value of the portion where the foreign material 5 is sandwiched is larger than the other portions. It can also be seen that the peak interval value does not change greatly even if the threshold value is changed.

  FIG. 13A shows a waveform of a magnetic signal read from the magnetic stripe 8 in a state where the foreign material 5 is sandwiched by about half of the entire surface of the magnetic stripe 8 (see FIG. 6B). In FIG. 13A, it can be seen that the voltage value of the portion sandwiching the foreign material 5 is smaller than the voltage value of the other portion. FIG. 13B is a diagram showing the peak interval when the threshold is L1, FIG. 13C is a diagram showing the peak interval when the threshold is L2, and FIG. 13D is a diagram showing the threshold. It is a figure which shows the peak space | interval at the time of setting to L3. In FIG. 13, as in FIG. 12, it can be seen that the value of the peak interval does not change greatly even if the threshold value is changed.

  FIG. 14A shows the waveform of the magnetic signal read from the magnetic stripe 8 in a state where the foreign object 5 is sandwiched across the entire surface of the magnetic stripe 8 (see FIG. 6C). In FIG. 14A, it can be seen that the voltage values of all the parts are smaller than those in FIG. FIG. 14 (b) is a diagram showing the peak interval when the threshold is L1, FIG. 14 (c) is a diagram showing the peak interval when the threshold is L2, and FIG. 14 (d) is a diagram showing the threshold. It is a figure which shows the peak space | interval at the time of setting to L3. 14 (b) to 14 (d) show that the peak interval is not detected as a result of the peak exceeding the threshold not being detected in the portion where the foreign object 5 is sandwiched.

  From the results of FIGS. 12 to 14, it can be seen that the peak interval value does not change greatly even if the threshold value is changed. In other words, by using this characteristic, it is possible to detect the trapping of foreign matter.

  FIG. 15A shows a waveform of a magnetic signal read from the magnetic stripe 8 in which magnetic attenuation has occurred in part. FIG. 15 (b) is a diagram showing the peak interval when the threshold is L1, FIG. 15 (c) is a diagram showing the peak interval when the threshold is L2, and FIG. 15 (d) is the diagram showing the threshold. It is a figure which shows the peak space | interval at the time of setting to L3. Note that the magnetic attenuation occurs, for example, when the magnetic stripe 8 approaches the magnet.

  As can be seen from FIG. 15 (a), unlike the case of foreign object pinching, in the method of decreasing the voltage value detected by magnetic attenuation, the peak height decreases gradually and then increases gradually. For this reason, as shown in FIG. 15B to FIG. 15D, the peak interval is changed by changing the threshold value.

  FIG. 16A shows a waveform of a magnetic signal read from the magnetic stripe 8 in which magnetic attenuation has occurred in part. Unlike FIG. 15A, FIG. 16A shows the waveform of a magnetic signal read from the magnetic stripe 8 in which magnetic attenuation occurs at two locations. FIG. 16B is a diagram showing the peak interval when the threshold is L1, FIG. 16C is a diagram showing the peak interval when the threshold is L2, and FIG. It is a figure which shows the peak space | interval at the time of setting to L3. Similarly to FIG. 15, FIGS. 16 (b) to 16 (d) show that the peak interval is changed by changing the threshold value.

  FIG. 17 shows a waveform of a magnetic signal read from the magnetic stripe 8 in a state where the magnetic stripe 8 is partially broken (see FIG. 9). 17A shows a waveform when the reading speed is a normal speed, FIG. 17B shows a waveform when the reading speed is slower than the normal speed, and FIG. c) shows a waveform when the reading speed is faster than the normal speed. The speed at the time of reading is adjusted by adjusting the transport speed of the bankbook 1 by the transport unit 45.

  As shown in FIG. 17, when a part of the magnetic stripe 8 is folded, it can be seen that the wavelength of the folded part is small. As a cause of this, it is conceivable that the magnetic head portion 44 and the magnetic stripe 8 are instantaneously separated due to bending.

  In the waveform when the reading speed is a normal speed, the peak interval of the portion where the peak interval is wide is D1 (see FIG. 17A), and in the waveform when the reading speed is slow, the peak interval is The peak interval of the portion where the peak interval is wide is D2 (see FIG. 17B), and the peak interval of the portion where the peak interval is widened is D3 in the waveform when the reading speed is increased (see FIG. 17A). 17), it can be seen that the peak interval changes by changing the reading speed, in other words, the slower the reading speed, the narrower the peak interval. It is conceivable that the portion at which the magnetic head portion 44 and the magnetic stripe 8 are separated decreases as the reading speed decreases. Since the speed for reading the pressure value and waveform changes, 17, the amplification factor of the waveform (the value of the horizontal axis) (ordinate values) and reading speed is varied so as to be constant.

  The portion where the fold has occurred can be identified based on the position where the waveform is attenuated. Further, the waveform attenuation caused by the bending becomes local compared with the magnetic attenuation caused by the contact between the magnet and the magnetic stripe 8. By using this characteristic, it is possible to determine whether the portion where the fold has occurred or whether the magnetic attenuation is caused by the fold or the magnetic attenuation caused by the contact between the magnet and the magnetic stripe 8.

A-3. Control Processing FIG. 18 is a flowchart showing the reading operation of the magnetic stripe 8 and shows processing executed by the control unit 46. In practice, this is a process realized by the CPU provided in the control unit 46 executing a computer program stored in the ROM.

  After detecting that the bankbook 1 has been inserted from the entrance / exit 51, the flow is started. First, in step S <b> 1, the control unit 46 controls the transport unit 45 to transport the passbook 1 to the magnetic head unit 44, thereby reading the magnetic signal waveform from the magnetic stripe 8 included in the passbook 1 by the magnetic head unit 44. Make it.

  In step S1, when the control unit 46 determines that the waveform cannot be read by the magnetic head unit 44 (step S2: NO), the control unit 46 controls the transport unit 45 to discharge the bankbook 1 in step S4. Then, the flow ends.

  On the other hand, when the control unit 46 determines that the waveform can be read by the magnetic head unit 44 (step S2: YES), in step S3, the control unit 46 sets the threshold value L1 having the largest absolute value among the threshold values as the threshold value. Among these, a determination process is performed for a first interval that is a peak interval exceeding the threshold L1. Note that the threshold value L1 is also referred to as a first threshold value.

  After the determination process, in step S5, the control unit 46 determines whether there is an abnormality in the first interval. That is, the control unit 46 determines whether or not there is a first abnormal portion having a peak interval larger than the predetermined peak interval in the first interval. Usually, there is only an interval representing 0 and an interval representing 1. In the present embodiment, the predetermined peak interval means a wide peak interval among an interval representing 0 and an interval representing 1. In addition, it can be estimated that there is a peak that does not exceed the threshold value in a portion where the peak interval is larger than a normal portion. The function part of the control part 46 in step S3 and step S5 is set as the 1st determination part 461 (refer FIG. 2).

  When the control unit 46 determines that there is no first abnormal portion having a peak interval larger than the predetermined peak interval in the first interval (step S5: NO), the magnetic stripe 8 is normally read. Since this is done, this flow ends. On the other hand, when the control unit 46 determines that there is a first abnormal portion having a peak interval larger than the predetermined peak interval in the first interval (step S5: YES), in step S6, the control unit 46 designates L2 which is a threshold value having an absolute value smaller than the absolute value of the threshold value L1, and performs a determination process for a second interval which is a peak interval exceeding the threshold value L2 in the waveform. Note that the threshold value L2 is also referred to as a second threshold value.

  After the determination process, in step S7, the control unit 46 determines whether there is an abnormality in the peak interval. That is, the control unit 46 determines whether or not there is a second abnormal portion having a peak interval larger than the predetermined peak interval in the second interval. The function part of the control part 46 in step S6 and step S7 is set as the 2nd determination part 463 (refer FIG. 2). When the controller 46 determines that there is no second abnormal portion having a peak interval larger than the predetermined peak interval in the second interval (step S7: NO), the magnetic stripe 8 is normally read. Since this is done, this flow ends. On the other hand, when the control unit 46 determines that there is a second abnormal portion having a peak interval larger than the predetermined peak interval in the second interval (step S7: YES), in step S9, the control unit 46 designates L3, which is a threshold value having an absolute value smaller than the absolute value of threshold value L2, as a threshold value, and performs determination processing for a third interval, which is a peak interval exceeding threshold value L3, in the waveform. Note that the threshold value L3 is also referred to as a third threshold value.

  After the determination process, in step S10, the control unit 46 determines whether there is an abnormality in the peak interval. That is, the control unit 46 determines whether or not there is a third abnormal portion having a peak interval larger than the predetermined peak interval in the third interval. The function part of the control part 46 in step S9 and step S10 is set as the 3rd determination part 465 (refer FIG. 2). When the control unit 46 determines that there is no third abnormal portion having a peak interval larger than the predetermined peak interval in the third interval (step S10: NO), in step S11, the control unit 46 Then, it is determined whether or not the first abnormal portion and the second abnormal portion have the same size. As a determination of whether or not the sizes are the same, the control unit 46 determines whether or not the difference between the first abnormal portion and the second abnormal portion is smaller than a predetermined value V1. When the difference is smaller than the predetermined value V1, the control unit 46 determines that the first abnormal portion and the second abnormal portion have the same magnitude. When the difference is larger than the predetermined value V1, the control unit 46 It is determined that the size of the first abnormal portion is different from the size of the second abnormal portion.

  If the control unit 46 determines that the first abnormal portion and the second abnormal portion have the same size (step S11: YES), that is, if the difference is determined to be smaller than the predetermined value V1, step S13 The control unit 46 controls the transport unit 45 to discharge the bankbook 1. Thereafter, in step S14, the control unit 46 outputs that there is a foreign object as an output unit (see FIG. 8A), and the flow ends. At this time, it means that the control unit 46 determines that the foreign object is caught. The reason for this determination is that the reduced portion of the waveform peak due to the inclusion of foreign matter is constant. The “step of outputting that foreign matter is caught” is also referred to as “output step”.

  On the other hand, when the control unit 46 determines that the first abnormal portion and the second abnormal portion are different in size (step S11: NO), the control unit 46 outputs an output waveform caused by something other than foreign object pinching. And the process proceeds to an attenuation determination process.

  In step S10, when it is determined that there is a third abnormal portion having a peak interval larger than the predetermined peak interval in the third interval (step S10: YES), in step S12, the control unit 46 It is determined whether the first abnormal part, the second abnormal part, and the third abnormal part have the same size. Whether or not the sizes are the same is determined by checking whether the difference between the smallest part and the largest part among the first abnormal part, the second abnormal part, and the third abnormal part is smaller than a predetermined value V2. The determination is made by the control unit 46. When the difference is smaller than the predetermined value V2, the control unit 46 determines that the sizes of the first abnormal portion, the second abnormal portion, and the third abnormal portion are the same, and when the difference is larger than the predetermined value V2, The control unit 46 determines that the first abnormal portion, the second abnormal portion, and the third abnormal portion have different sizes.

  When the control unit 46 determines that the first abnormal portion, the second abnormal portion, and the third abnormal portion have the same size (step S12: YES), that is, the difference is determined to be smaller than the predetermined value V2. If it is, the control unit 46 controls the transport unit 45 to discharge the bankbook 1 in step S13. Thereafter, in step S14, the control unit 46 outputs to the display unit 52 that the foreign object is caught (see FIG. 8A), and the flow ends. At this time, it means that the control unit 46 determines that the foreign object is caught. On the other hand, when the control unit 46 determines that the sizes of the first abnormal part, the second abnormal part, and the third abnormal part are different (step S12: NO), the control unit 46, in step S15, It is determined that the output waveform is attenuated, and the process proceeds to attenuation determination processing.

  In this embodiment, when threshold value L1> threshold value L2> threshold value L3, the threshold values are set in descending order to determine the peak interval, but the present invention is not limited to this. In other words, it is possible to determine the presence or absence of foreign matter by using at least two different threshold values.

  FIG. 19 is a flowchart showing an attenuation determination process, and shows a process executed by the control unit 46. In step S41, the control unit 46 determines whether or not the size of the portion (first abnormal portion) whose peak interval is larger than the normal portion in the case of the threshold value L1 is greater than or equal to the set value V3.

  When the size of the abnormal portion is equal to or larger than the set value V3 (step S41: YES), the control unit 46 determines that the cause of magnetic attenuation is magnetic attenuation caused by a magnet or the like, determines that it can be read normally, and executes the flow. finish. The reason for determining that reading can be performed normally is that magnetic attenuation caused by a magnet or the like does not affect the magnetic writing by the magnetic head unit 44 because it is not a foreign object sandwiched or a magnetic stripe 8 bent. In addition, when the size of the abnormal portion is equal to or larger than the set value V3, the reason for determining the cause of magnetic attenuation as magnetic attenuation caused by a magnet or the like is that the magnetic attenuation by the magnet covers a wide range of the magnetic stripe 8. Can be mentioned.

  On the other hand, when the size of the abnormal portion is smaller than the set value V3 (step S41: NO), in step S42, the control unit 46 causes the magnetic head unit 44 to change the conveyance speed of the bankbook 1 by the conveyance unit 45. In a state where the reading speed of the magnetic stripe 8 is changed, the waveform is read by the magnetic head unit 44. In the present embodiment, the reading speed is increased by increasing the conveying speed, but the reading speed may be decreased by decreasing the conveying speed.

  Thereafter, in step S43, the control unit 46 sets the threshold value to L1, and performs a determination process for the peak interval exceeding the threshold value L1 in the waveform.

  In step S44, the control unit 46 determines whether or not the portion (abnormal portion) having a larger peak interval than the normal portion is equal between the normal speed and the read speed. That is, the control unit 46 determines whether or not the difference between the size of the abnormal portion at the normal speed and the size of the abnormal portion when the reading speed is changed is equal to or greater than the predetermined value V4.

  When the control unit 46 determines that the difference is equal to or greater than the predetermined value V4 (step S44: NO), the control unit 46 discharges the bankbook 1 by the transport unit 45 in step S46. Thereafter, in step S47, the display unit 52 outputs that the magnetic stripe 8 is broken as an output unit by the control unit 46, and ends the flow. At this time, it means that the control unit 46 determines that the magnetic stripe 8 is broken. According to the present embodiment, the magnetic stripe is broken by comparing the peak interval in a state in which the reading speed of the bankbook 1 is changed by the transport unit 45 and having a peak interval larger than the predetermined peak interval. It can be detected. The reason for this determination is that when the magnetic stripe is broken, the portion where the magnetic head portion 44 and the magnetic stripe 8 are separated decreases as the reading speed is decreased.

  On the other hand, when the control unit 46 determines that the difference is smaller than the predetermined value V4 (step S44: YES), the control unit 46 determines that the cause of magnetic attenuation is magnetic attenuation caused by a magnet or the like, and determines that the reading can be normally performed. To end the flow.

  In the present embodiment, the waveform is read once in a state where the reading speed is changed. However, the present invention is not limited to this and may be changed a plurality of times. By performing the waveform reading in a state where the reading speed is changed a plurality of times, it is possible to more accurately detect the breakage of the magnetic stripe 8.

B. Second Embodiment FIG. 20 is a flowchart showing a write process to the magnetic stripe 8 in the second embodiment, and shows a process executed by the control unit 46. When the break of the magnetic stripe 8 is detected in the first embodiment, the control unit 46 ejects the passbook 1, but the second embodiment does not eject the bankbook 1, but the writing to the magnetic stripe 8 is different. The rest is the same.

  In step S <b> 71, the control unit 46 determines whether or not a break of the magnetic stripe 8 has been detected during the magnetic stripe 8 reading process. If no break of the magnetic stripe 8 is detected (step S71: NO), the control unit 46 sets the normal write current value (step S72), and starts writing to the magnetic stripe 8 by the magnetic head unit 44. .

  On the other hand, when the bending of the magnetic stripe 8 is detected (step S71: YES), the control unit 46 sets a current value higher than the normal write current value (step S72), and the magnetic stripe by the magnetic head unit 44 is set. Start writing to 8. That is, the magnetic force when writing to the magnetic stripe 8 is increased. By doing so, it is possible to write to the magnetic stripe 8 even at a portion where the distance between the magnetic head portion 44 and the magnetic stripe 8 due to the bending of the magnetic stripe 8 is increased.

  In addition, since the waveform is attenuated in the bent portion of the magnetic stripe 8, it is possible to specify the bent portion. That is, it is possible to identify a broken portion based on the position of the abnormal portion. For this reason, the control unit 46 causes the magnetic head unit 44 to write at a normal current value in a portion where the magnetic stripe 8 is not bent, and a current value higher than the normal current value in a portion where the magnetic stripe 8 is bent. Thus, the magnetic head 44 may be written. That is, the magnetic force at the time of writing may be increased by comparing the portion where the magnetic stripe 8 is bent with the portion where the magnetic stripe 8 is not detected. In this way, power consumption can be reduced.

  Further, in the bent portion and the unfolded portion of the magnetic stripe 8, the control unit 46 causes the magnetic head unit 44 to write with a normal current value, and then the waveform of the magnetic stripe 8 is generated by the magnetic head unit 44. Only when reading and waveform attenuation occur, the magnetic head unit 44 may be written with a current value higher than the normal current value.

C. Other Embodiments The present invention is not limited to the above-described embodiments, examples, and modifications, and can be realized with various configurations without departing from the spirit thereof. For example, the technical features in the embodiments, examples, and modifications corresponding to the technical features in each embodiment described in the summary section of the invention are to solve some or all of the above-described problems, or In order to achieve part or all of the above-described effects, replacement or combination can be performed as appropriate. Further, if the technical feature is not described as essential in the present specification, it can be deleted as appropriate.

  In the embodiment described above, the threshold value L1, the threshold value L2, and the threshold value L3 are predetermined values. However, the present invention is not limited to this. For example, the threshold value may be based on the maximum peak value of the read waveform. In this case, the threshold L1 is set to 3/4 of the maximum peak value, the threshold L2 is set to 1/2 of the maximum peak value, and the threshold L3 is set to 1/4 of the maximum peak value. May be.

  In the above-described embodiment, a passbook with a magnetic stripe is used, but the present invention is not limited to this. That is, a card or a certificate may be used as a medium having a magnetic stripe. For this reason, the present invention can be implemented as, for example, a card processing device or a certificate processing device.

DESCRIPTION OF SYMBOLS 1 ... Passbook 3 ... Conveyance roller 4 ... Conveyance path 5 ... Foreign substance 8 ... Magnetic stripe 10 ... Overall control part 40 ... Passbook processing apparatus 44 ... Magnetic head part 45 ... Conveyance part 46 ... Control part 51 ... Entrance / exit 52 ... Display part 53 Entry / exit 54 ... Entry / exit 61 ... Passbook entry machine 62 ... Passbook insertion part 70 ... Card processing part 80 ... Money processing part 90 ... Communication part 100 ... Automatic transaction device V1 ... Predetermined value L1 ... Threshold L2 ... Threshold V2 ... Predetermined value L3 ... Threshold V3 ... Set value V4 ... Predetermined value

Claims (8)

A reading unit for reading a magnetic signal waveform from a magnetic stripe provided in the bankbook;
After determining a first interval of peaks exceeding a first threshold in the waveform, whether or not there is a first abnormal portion having a peak interval larger than a predetermined peak interval in the first interval A first determination unit for determining
Among the waveforms, after determining a second interval of peaks exceeding a second threshold different from the first threshold, the peak interval is larger than the predetermined peak interval in the second interval. A second determination unit for determining whether there is a second abnormal portion;
When it is determined that there is the first abnormal portion and the second abnormal portion, and the difference between the first abnormal portion and the second abnormal portion is smaller than a predetermined value, there is a foreign object being caught. A passbook processing apparatus comprising: an output unit that outputs The passbook processing apparatus according to claim 1,
Further, after determining a third interval of peaks in the waveform that exceeds a third threshold different from the first threshold and the second threshold, the predetermined interval is determined within the third interval. A third determination unit that determines whether there is a third abnormal portion having a peak interval larger than the peak interval;
The output unit is determined to have the first abnormal portion, the second abnormal portion, and the third abnormal portion, and the first abnormal portion, the second abnormal portion, and the third abnormal portion. A passbook processing device that outputs that a foreign object is caught when the difference between the smallest part and the largest part is smaller than a predetermined value among the abnormal parts. The passbook processing apparatus according to claim 1 or 2,
The output unit determines the first interval a plurality of times by changing a reading speed of the magnetic stripe by the reading unit, and breaks the magnetic stripe based on the obtained first intervals. Passbook processing device that can output that there is. The passbook processing apparatus according to claim 3,
Furthermore, a writing unit for writing to the magnetic stripe is provided,
In the writing unit, when the output unit outputs that the magnetic stripe is broken, the writing unit does not output when the output unit outputs that the magnetic stripe is broken. Passbook processing device that can increase the magnetic force. The passbook processing apparatus according to claim 3,
Furthermore, a writing unit for writing to the magnetic stripe is provided,
The writing unit increases a magnetic force when writing by comparing a portion where the magnetic stripe is detected which is detected based on the first abnormal portion with a portion where the magnetic stripe is not detected. A passbook processing device that can do.   An automatic transaction apparatus comprising the bankbook processing apparatus according to any one of claims 1 to 5. Reading the magnetic signal waveform from the magnetic stripe provided in the bankbook;
After determining a first interval of peaks exceeding a first threshold in the waveform, whether or not there is a first abnormal portion having a peak interval larger than a predetermined peak interval in the first interval A step of determining
After determining a second interval of peaks exceeding a second threshold different from the first threshold in the waveform, the second interval is a peak interval greater than a predetermined peak interval in the second interval. Determining whether there are two abnormal parts;
When it is determined that there is the first abnormal portion and the second abnormal portion, and the difference between the first abnormal portion and the second abnormal portion is smaller than a predetermined value, there is a foreign object being caught. A foreign matter detection method comprising: an output step of outputting The foreign object detection method according to claim 7,
Further, after determining a third interval of peaks in the waveform that exceed a third threshold value different from the first threshold value and the second threshold value, a predetermined peak in the third interval is determined. Determining whether there is a third abnormal portion having a peak interval that is greater than the interval,
In the output step, it is determined that the first abnormal portion, the second abnormal portion, and the third abnormal portion are present, and the first abnormal portion, the second abnormal portion, and the third abnormal portion are determined. A foreign matter detection method including a step of outputting that a foreign matter is caught when the difference between the smallest portion and the largest portion is smaller than a predetermined value among the abnormal portions.

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